On a similar note, the floating four doesn't seem to be going away anytime soon. A theory by Tedster has been proposed that this may have something to do with the number of URLs indexed. Hey, you never know.

Case Sensitivity Matters

While people have debated the previous impact of case sensitivity, Barry performed a test with different case and found results that weren't consistent. In other words, it looks like Google is somewhat testing out theories related to case.

Want some money? Most people do. If you want to get cash back on your purchases, check out the Microsoft Live's Cash Back program which offers you money based on products purchased through the search engine. I think it may work for those who really want the money, but Barry disagrees. He's probably right.

Google's Crown Jewels Discussed

They say Google has the best search algorithm in town, but people are curious about it. Google VP Udi Manber wrote a blog post on the Google Blog about quality factors, and I have to say it's a pretty interesting read -- one of my favorite posts on the Google blog of all time. If you haven't read it, go. Now.

Yahoo is Playing with Ads

Yahoo is performing their own tests with ads, and while the changes are subtle, this is what A/B testing is all about. Will it improve CTR? I guess Yahoo will find out.

A small amount of Google AdWords advertisers are currently being selected for the automatic matching beta launch within Google AdWords. The ads will go live in June 3rd and those who don't agree with the suggestion can opt out beforehand.

Google Supports Third-Party Ad Serving Technology

Google is now supporting third party ad serving technology, and AdSense publishers can partake in this as long as they opt in for image ads, enable advertisers to target your AdSense channels, and opt into placement targeting.

This week, Google Health launched which somewhat is a journal of the kind of medicinal information that you may see for emergencies for babysitters on your refrigerator door. Now, it's all online. Useful? Depends. A privacy concern? For most of us, debateable. For Gen Y'ers, probably not.